holland



(No Model.)

2 Sheets 8heet 1. N. ROLLAND 8v H. PRANQOIS.

GHURN.

3463f Patented May 24, 1892.

8 KM Q H WITNESSES:

ATTORNEYS UNITED STATES PATENT OFFICE.

NESTOR ROLLAND AND HECTOR FRANQOIS, OF BRUSSELS, BELGIUM.

CHURN.

SPECIFICATION forming part of Letters Patent No. 475,346, dated May 24,1892.

Application filed November 30, 1891- Serial No. 113,633. (No model.)Patented in Belgium January 19, 1891, No. 93,488, and August 24, 1891,No. 96,028; in Switzerland February 26, 1891, No. 3,553; in France March7, 1891,No. 211,955; in Italy March 31, 1891, No. 131, and in LnxemburgSeptember 8, 1891,11'0. 1,497.

To all whom it may concern.-

Be it known that we, NESTOR ROLLAND and HECTOR FRANQOIS, subjects of theKing of Belgium, residing at Brussels, in said Kingdom, have inventedcertain new and useful Improvements in (Jhurns, (for which LettersPatent have been granted in Belgium, dated January 19, 1891, No. 93,488,with patent of improvement, dated August 21, 1891, No. 96,028; inLuxernburg, dated September 8, 1891,No.1, 197; in France, dated March 7,1891, No. 211,955; in Switzerland, dated February 26, 1891, No. 3,553,and in Italy, dated March 31, 1891, No. 131,) of which the following isa full, clear, and exact description.

The object of our invention is to provide a churn and means for passinga current of purified air through the same for the purpose of agitatingand purifying the butterheld in suspension in the milk.

In order to make our invention more clearly understood, we have shown inthe accompanying drawings means for carrying the same into practicaleffect.

In said drawings, Figures 1 and 2 show, partly in section, thecombination,with a churn, of an air-forcing device and the interposedair-purifier. Fig. 3 is a plan of an' interior box with perforatedcover. Fig. 1 is a section of the purifier. Fig. 5 is a view of an innerportion of the same. Fig. 6 shows an interior section. and interior boxwith round perforated sides. Fig. 7 is a horizontal section throughlines M N of Fig. 6.

The air-blower, Fig. 2, is of any known kind,

having, preferably, a double action. Leading from this apparatus isatube TT, which first passes through an opening N, larger than this tubeand formed in the easilyremovable cover of the churn B, and then endingin the bottom of the latter in a box made with two bottoms, the one Xwith perforations t' i 1', &c., completed by an annular rim 2, alsoperforated, the other P provided with a rim, to which corresponds alower rim of the bottom on, these two rims constituting thus the twosides of a box. Easilydetachable bolts unite the bottoms X and F withone another. This box can during the churning rest in any suitablemanner on the bottom of the churn,

leaving a space between the latter and the bottom of the box. The side ZZ, with perforations X, can, as shown by Fig. 6, be completed by asecond cylindrical chamber Z, forming with the first an annular chamber0 0, which communicates (see the arrows) by proper openings X with thespace formed between the two false bottoms X and F. The tube N is fixedin a suitable manner to the bottom 00.

N is an air-regulator.

X are openings for the removal of the milk when after the manufacture ofbutter the false bottom or dish X F Z is withdrawn.

The air-purifier, Figs. 4 and 5, is a metallic receptacle, preferablycylindrical,with a cover Z, held by a hook m, and which can be taken offand closed for the renewal of the wadding used for the purifying of theair. This receptacl'e is provided on each of its sides with a tubing it,before which a grating or sieve p is arranged, which gives passage tothe air (see also Fig. 5) and hinders pieces of the wadding frompenetratinginto the air-tube. The waddin g must fill the receptaclewithout, however, being too tightly packed. The two end tubings t 15' goover the two corresponding parts of the conduit T T, which unites theair-blower to the churn. Appropriate joints or flexible sleeves t areplaced at the connection of the parts of the tube. The constitutiveparts of the apparatus being thus explained, any one in the trade willeasily understand the working and the advantages derived therefrom. Theair brought under pressure by the air-blower passes through the waddingcontained in the purifier K, arrives by the conduit N N in the spaceformed between the bottoms X F, escapes by the holes t' i, traverses themilk or cream in the churn in thousands of bubbles, and produces anagitation and bubbling, thus effecting a healthy and rapid separation ofthe butter, which, as is known, is held in suspension in imperceptibleglobules. The air-bubbles attack simultaneously the butter matter in allthe parts of the liquid at. The separation of the butter from the massis done in a few minutes, no matter what the quantity of milk on whichit operates, the quantity of air blown in being always proportional tothe section of thechurn.- The rapidity of the operation, together withthe great quantity of pure air striking the milk in all its particles,has also the result that the beaten milk, instead of souring, remainslike creamed-01f milk Without any after taste. When the butter ismadesay in about eight minutesto withdraw it from the churn the tube N Nis unfastened from its sleeve 15 it is raised up, and the box X F iswithdrawn from the churn, together with the basin Z, containing thebutter. During the operation part of the milk can have escaped by theperforations of the wall Z. When the butter is taken out, the basin andthe box X F are dismounted for the purpose of cleaning, the smallquantities of butter which have formed between the two bottoms arewithdrawn from the latter, and the box is put back into the bottom ofthe churn, after which the whole apparatus is put into working order asbefore.

The modification in the manner of working by the use of the interiorarrangement, Fig 6, is the following-z The blown-in air, coming, aspreviously, by the vertical tube N, spreads out in the space formedbetween the first two false bottoms X F, escapes partly vertically bythe small holes X of the bottom X, and in part it goes into the annularspace 0 O, to be horizontally projected into the liquid by the smallholes X" of the interior wall 2 z. The result, in fact, is that thebutter particles suspended in the milk and subjected simultaneously tothe action of vertical and horizontal air-jets unite and agglomeratevery rapidly to form the mass of butter.

Having thus described our invention, what we claim is l. A churn for theproduction of butter by agitation with air-currents, consisting of acylindrical body, a tubular dasher provided at its lower end with animperforate plate, and an annular extension above said plate, the innercylinder of said extension and the upper plate of the aerator beingperforated to cause both vertical and horizontal jets, the parts beingunited and combined as shown, and said dasher connected at its upperportion with an air-forcing device.

NESTOR ROLLAND. HECTOR FR-ANQOIS.

Witnesses:

GEORGE BEDE, GREGORY PHELAN.

